wxNviz:enable disabled statusbar combobox when switching to 2D

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@47838 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/gui_modules/mapdisp.py

@@ -425,6 +425,8 @@ class MapFrame(wx.Frame):
     
     def RemoveNviz(self):
         """!Restore 2D view"""
+        # update status bar
+        self.statusbarWin['toggle'].Enable(True)
         self.statusbar.SetStatusText(_("Please wait, unloading data..."), 0)
         self._layerManager.goutput.WriteCmdLog(_("Switching back to 2D view mode..."),
                                                switchPage = False)